M7A1

Length, inches

7

Width, inches

Height, inches

Total weight, pounds

Tetrytol filler, pounds

Material

Color

Oliv drab

Components: This mine can be used as either an anti-tank or an anti-personnel mine. The body is rectangular steel container filled with high explosive. The fuze well is located in the center of the top surface, and at one end is an activator well that will ac-commodate any standard firing device with a Corps of Engineers' blasting cap. The pres-sure plate is shaped to the contour of the mine body and is slotted so that it may be guided by rivets in the sides of the mine body, into position over the fuze. A small circu-lar pad on the underside of the pressure plate bears against the head of the fuze.

Fuze: The Chemical Fuze M600 is a separate unit and consists of the fuze body, safety key, piston, compression sleeve, resistance spring, vial of chemical, detonator, and fuze booster charge.

When pressure is applied on the pressure plate, it is transmitted to the piston head. As the resistance of the spring is overcome, the compression sleeve is crushed, and the piston moves down to crush the vial of chemical. The chemical reacts with the surround-ing mixture to set off the detonator, fuze booster, booster, and main charge.

Remarks: For a booby trap or anti-personnel mine, any standard firing device may be attached to the side fuze well.

Figure 241. Anti-Tank Mine M7A1